538406168353 has 4 divisors (see below), whose sum is σ = 538449215488. Its totient is φ = 538363121220.

The previous prime is 538406168327. The next prime is 538406168371. The reversal of 538406168353 is 353861604835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538406168353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538406168353.

It is not an unprimeable number, because it can be changed into a prime (538406168323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21504801 + ... + 21529822.

It is an arithmetic number, because the mean of its divisors is an integer number (134612303872).

Almost surely, 2^538406168353 is an apocalyptic number.

It is an amenable number.

538406168353 is a deficient number, since it is larger than the sum of its proper divisors (43047135).

538406168353 is a wasteful number, since it uses less digits than its factorization.

538406168353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43047134.

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 538406168353 in words is "five hundred thirty-eight billion, four hundred six million, one hundred sixty-eight thousand, three hundred fifty-three".